Granted Patent
Utility
US 4,189,086 · App. 05/939,303
Assembled and folded blank for bulk container with partial bellows bottom
Inventors:
Vernard S. Booth, Billy W. Oswalt
Patented Case
View Patent ↗
Granted: Feb 19, 1980
Filed: Sep 5, 1978
Inventors
Vernard S. Booth
Billy W. Oswalt
Assignee (at issue)
Olinkraft, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.